BMSKTOPASA900(DCE) Toshiba, BMSKTOPASA900(DCE) Datasheet - Page 419

• Manufacturer Part Number: BMSKTOPASA900(DCE)
• Description: KIT STARTER TMPA900 USB JTAG
• Manufacturer: Toshiba
• Series: TOPASr
• Type: MCUr

Specifications of BMSKTOPASA900(DCE)

• Contents: Evaluation Board, Cable(s), Software and Documentation
• For Use With/related Products: TMPA900CMXBG
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

I2CINT0
Interrupt request
Write to I2C0DBR
I2C0DA pin
I2C0CL pin
<PIN>
3. 1-Word Data Transfer
and determine whether master or slave mode is selected.
(1) When I2C0SR<MST> = 1 (Master mode)
Check I2C0SR<MST> in the interrupt routine after a 1-word data transfer is completed,
Figure 3.14.6 When I2C0CR1<BC> = 0y000 and I2C0CR1<ACK> = 1
I2C0SR<LRB> is 0, the receiver is requesting the next data. Write the data to be
transmitted to I2C0DBR.
I2C0CR1<ACK> to 1, and then write the data to be transmitted to I2C0DBR.
generated to transmit from I2C0CL the data from I2C0DA.
I2C0SR<PIN> is cleared to 0 and I2C0CL is pulled low. If more than one word of data
needs to be transferred, repeat the procedure by checking I2C0SR<LRB>.
condition should be generated to terminate the data transfer.
for 1-word transfer and acknowledge to be output.
operation, read the received data from I2C0DBR.
I2C0CR1<ACK> to 1 and then write dummy data (0x00) to I2C0DBR or set
I2C0CR2<PIN> to 1.
a. When I2C0SR<TRX>=1 (Transmitter mode)
b. When I2C0SR<TRX> = 0 (Receiver mode)
Check I2C0SR<TRX> to determine whether transmitter or receiver mode is selected.
Check the acknowledge status from the receiver with the I2C0SR<LRB> flag. When
If it is necessary to change the transfer data size, change I2C0CR1<BC>, set
After the transmit data is written, I2C0SR<PIN> is set to 1 and serial clocks are
After the transmission is completed, an I2CINT0 interrupt request is generated.
When I2C0SR<LRB> is 1, the receiver is not requesting the next data, so a stop
Writing dummy data (0x00) to I2C0DBR or setting I2C0CR2<PIN> to 1 causes clocks
After an I2CINT0 interrupt request is generated to indicate the end of receive
If it is necessary to change the receive data size, change I2C0CR1<BC>, set
(The data that is read immediately after slave address transmission is undefined.)
D7
1
D6
2
D5
3
TENTATIVE
TMPA900CM- 418
D4
4
D3
5
D2
6
D1
7
D0
8
ACK
Master output
Slave output
9
TMPA900CM
Acknowledge
signal from
Receiver
2009-10-14